Social Fetch

List Facebook group posts

facebook_group_posts_list

Read-only

List posts from a Facebook group by group URL. Returns a list (use cursor when paginated).

Input Schema

TableJSON Schema

Name	Required	Description
`url`	No	Public Facebook group URL whose posts should be listed.
`link`	No	Alias for `url`. Prefer `url`.
`path`	No	Alias for `url`. Prefer `url`.
`sort`	No	Alias for `sortBy`. Prefer `sortBy`.
`trim`	No	Ignored if this tool does not support it.
`limit`	No	Ignored if this tool does not support it.
`cursor`	No	Opaque pagination cursor from a previous response.
`offset`	No	Ignored if this tool does not support it.
`sortBy`	No	Optional sort order for posts returned from the group feed. `top`: Facebook's default relevance ranking. `recentActivity`: sorted by most recent comment/reaction activity. `chronological`: regular posts sorted by post time, newest first. `chronologicalListings`: Facebook's separate feed of listing-style posts (e.g. items for sale) within the group, sorted by time.
`context`	Yes	Describe the user's underlying goal in one sentence — not the tool you are calling.
`tweetId`	No	Alias for `url`. Prefer `url`.
`pageSize`	No	Ignored if this tool does not support it.
`tweetUrl`	No	Alias for `url`. Prefer `url`.
`tweet_id`	No	Alias for `url`. Prefer `url`.
`llm_model`	Yes	The exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. "claude-opus-4-8", "gpt-5.2"). Used for analytics only. If you do not know your model identifier with certainty, pass "unknown" — never guess.
`permalink`	No	Alias for `url`. Prefer `url`.
`tweet_url`	No	Alias for `url`. Prefer `url`.
`maxResults`	No	Ignored if this tool does not support it.
`max_results`	No	Ignored if this tool does not support it.
`conversation_id`	No	Echo the conversation_id from the server's previous response. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it.

Schema Changelog

Changes observed during successful MCP inspections.

Changed20 schema fields changedSep 21, 2026

addedInput schema / properties / limit

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / link / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / link / type
```
Removed value: -"string"
```

addedInput schema / properties / maxResults

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / max_results

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / offset

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / pageSize

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / path

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Alias for `url`. Prefer `url`."
+}

addedInput schema / properties / permalink / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / permalink / type
```
Removed value: -"string"
```

addedInput schema / properties / sort

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Alias for `sortBy`. Prefer `sortBy`."
+}

addedInput schema / properties / trim

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    },
+    {
+      "type": "boolean"
+    }
+  ],
+  "description": "Ignored if this tool does not support it."
+}

addedInput schema / properties / tweetId / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / tweetId / type
```
Removed value: -"string"
```

addedInput schema / properties / tweetUrl / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / tweetUrl / type
```
Removed value: -"string"
```

addedInput schema / properties / tweet_id / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / tweet_id / type
```
Removed value: -"string"
```

addedInput schema / properties / tweet_url / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  },
+  {
+    "type": "boolean"
+  }
+]

removedInput schema / properties / tweet_url / type
```
Removed value: -"string"
```

Changed7 schema fields changedSep 12, 2026

addedInput schema / properties / link

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

addedInput schema / properties / permalink

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

addedInput schema / properties / tweetId

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

addedInput schema / properties / tweetUrl

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

addedInput schema / properties / tweet_id

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

addedInput schema / properties / tweet_url

Added value: +{
+  "description": "Alias for `url`. Prefer `url`.",
+  "type": "string"
+}

changedInput schema / required

Previous value: -[
-  "url",
-  "context",
-  "llm_model"
-]New value: +[
+  "context",
+  "llm_model"
+]

Changed5 schema fields changedSep 5, 2026

removedInput schema / additionalProperties
```
Removed value: -false
```

addedInput schema / properties / context

Added value: +{
+  "description": "Describe the user's underlying goal in one sentence — not the tool you are calling.",
+  "type": "string"
+}

addedInput schema / properties / conversation_id

Added value: +{
+  "description": "Echo the conversation_id from the server's previous response. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it.",
+  "type": "string"
+}

addedInput schema / properties / llm_model

Added value: +{
+  "description": "The exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. \"claude-opus-4-8\", \"gpt-5.2\"). Used for analytics only. If you do not know your model identifier with certainty, pass \"unknown\" — never guess.",
+  "type": "string"
+}

changedInput schema / required

Previous value: -[
-  "url"
-]New value: +[
+  "url",
+  "context",
+  "llm_model"
+]

Changed1 schema field changedAug 27, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

Changed1 schema field changedJul 31, 2026

changedInput schema / properties / sortBy / description

Previous value: -"Optional sort order for the returned posts."New value: +"Optional sort order for posts returned from the group feed. `top`: Facebook's default relevance ranking. `recentActivity`: sorted by most recent comment/reaction activity. `chronological`: regular posts sorted by post time, newest first. `chronologicalListings`: Facebook's separate feed of listing-style posts (e.g. items for sale) within the group, sorted by time."

Changed1 schema field changedJul 29, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```

Changed1 schema field changedJul 29, 2026

changedInput schema / properties / cursor / description

Previous value: -"Opaque pagination cursor from a previous response (`data.page.nextCursor`)."New value: +"Opaque pagination cursor from a previous response."

First observedJul 20, 2026

TDQS

B3.3/5.0

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and openWorldHint=true, so the read-only safety profile is covered. The description adds a useful behavioral note beyond annotations — 'Returns a list (use cursor when paginated)' — which tells the agent the return shape and how to paginate. But it does not disclose auth requirements, rate limits, or response-size behavior, so the added value is moderate.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with zero filler. The purpose is front-loaded in the first sentence, and the return/pagination note is packed efficiently into the second. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a read-only list tool with a 100%-coverage schema, the description is adequate: it names the input and pagination mechanism. However, with 20 parameters including many 'Ignored if this tool does not support it' fields and forum-specific aliases, the description does not clarify which pagination/limit parameters actually function (e.g., limit, offset, maxResults), nor does it mention sorting via sortBy. No output schema means the 'Returns a list' note is valuable, but completeness is only middling.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the baseline is 3. The description adds minor value by surfacing the two meaningful parameters — group `url` as the primary input and `cursor` for pagination — but the schema already documents all parameters, including the noisy alias fields (tweetId, tweet_url, permalink) that the description does not help disambiguate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource ('List posts from a Facebook group by group URL'), which is clear and inherently differentiates it from nearby siblings like facebook_profile_posts_list and facebook_events_list. However, it does not explicitly name or contrast any sibling, so an agent must infer the distinction from the word 'group'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives — nothing distinguishes it from facebook_profile_posts_list, facebook_events_list, or facebook_post_comments_list. No prerequisites (e.g., the group must be public, which the schema mentions but the description omits) or conditions are stated, leaving the agent to guess.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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List Facebook group posts

Input Schema

Schema Changelog

TDQS

Glama MCP Gateway

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